Concrete processing pulverizer

Abstract

The utility model relates to the technical field of concrete processing, and discloses a concrete processing pulverizer which comprises a pulverizing frame, a discharging frame is arranged below the pulverizing frame, and a screening assembly is arranged in the discharging frame. The screening assembly comprises a mounting groove, the mounting groove is formed in the discharging frame, a rotating ring is rotatably connected to the interior of the mounting groove, a gear ring is fixedly connected to the exterior of the rotating ring, a fixing ring is fixedly connected to the interior of the rotating ring, a plurality of outer pipes and a plurality of springs are fixedly connected to the upper surface of the fixing ring, and the springs are arranged in the outer pipes. According to the concrete screening device, materials can be screened conveniently when concrete is discharged after being processed and ground, blocky particle materials which are not completely ground can be intercepted, the phenomenon that the blocky particle materials and powdery materials are discharged together during discharging, and consequently the discharging quality is reduced is reduced, meanwhile, the screening plate can rotate and shake conveniently during screening, and the screening efficiency is improved. Therefore, the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete processing technology, and in particular to a concrete processing grinding mill. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. This material typically does not bear tensile force, only compressive force, and therefore generally needs to be used in conjunction with steel bars to form reinforced concrete for constructing various structures. Concrete grinding mills are mainly used to grind concrete materials into fine powder and are important equipment in cement production lines and construction waste treatment. They are widely used in many fields such as concrete block production, recycled aggregate preparation, road construction, and building aggregates.

[0003] A search revealed that Chinese Patent CN221580751U discloses a concrete grinding mill. This mill addresses the problem that when processing concrete, the raw materials are ground into powder by the grinding rollers and discharged from the outlet. Workers need to collect the powder at the outlet, but this process generates dust that floats in the air, causing a large amount of dust to be inhaled by workers, affecting their work. Therefore, this patent solves the problem of dust generated when concrete is ground into powder and discharged from the outlet, which then floats in the air and is inhaled by workers.

[0004] The aforementioned grinding mill facilitates the reduction of dust generated during discharge. However, it is not convenient for screening and filtering materials after grinding, which can easily lead to the simultaneous discharge of incompletely ground lumpy materials mixed with powdery materials. This reduces the uniformity of the discharged materials and lowers the quality of the concrete. Furthermore, in the prior art, the screen plates inside the grinding mill are usually fixedly installed. This can easily cause the ground materials to accumulate on the screen plate surface due to the relatively static screen plate, resulting in screen plate blockage, reducing the screening efficiency, and thus reducing the discharge efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a concrete processing grinding mill.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a concrete processing grinding mill, including a grinding frame, a feeding frame is provided below the grinding frame, and a screening component is provided inside the feeding frame;

[0007] The screening assembly includes an installation groove located inside the feeding frame. A rotating ring is rotatably connected inside the installation groove. A gear ring is fixedly connected to the outside of the rotating ring. A fixed ring is fixedly connected to the inside of the rotating ring. Multiple outer tubes and multiple springs are fixedly connected to the upper surface of the fixed ring. The springs are located inside the outer tubes. Inner tubes are slidably connected to the inside of the outer tubes. One end of each spring is fixedly connected to an installation ring, which is fixedly connected to the upper surface of the multiple inner tubes. A screen plate is located inside the installation ring. A hydraulic cylinder is fixedly installed on one side of the feeding frame. A connecting block is fixedly connected to the output end of the hydraulic cylinder. A rack is fixedly connected to one side of the connecting block. An installation rod is fixedly connected to one side of the feeding frame. A gear is rotatably connected to one end of the installation rod. The gear and rack are meshed together, and the gear and gear ring are meshed together.

[0008] As a further description of the above technical solution:

[0009] The lower surface of the grinding frame is provided with a replacement component, which includes two sliders. The two sliders are fixedly connected to the lower surface of the grinding frame, and the cross-section of the sliders is L-shaped.

[0010] As a further description of the above technical solution:

[0011] Both sides of the grinding frame are fixedly connected to fixing plates, and two sliding grooves are opened on the upper surface of the feeding frame.

[0012] As a further description of the above technical solution:

[0013] The feeding frame has slots on both sides, and a bidirectional lead screw is rotatably connected to one side of the feeding frame.

[0014] As a further description of the above technical solution:

[0015] A knob is fixedly connected to one end of the bidirectional lead screw, and connecting rods are threaded to both ends of the bidirectional lead screw.

[0016] As a further description of the above technical solution:

[0017] One end of the connecting rod is fixedly connected to a clamping plate, and two threaded holes are formed on the upper surface of the mounting ring.

[0018] As a further description of the above technical solution:

[0019] Two mounting blocks are fixedly connected to the upper surface of the sieve plate, and bolts pass through the middle of the mounting blocks. A feeding pipe is connected through the lower surface of the feeding frame.

[0020] This utility model has the following beneficial effects:

[0021] This invention, through the inclusion of a screening component, enhances the screening function of the concrete grinding mill during the discharge of ground concrete. This helps to retain incompletely ground lumpy particles, reducing the likelihood of lumpy particles mixing with powdery materials during discharge and thus minimizing the reduction in output quality. Furthermore, the screen plate can rotate and vibrate during screening, thereby improving screening efficiency and reducing screen blockage caused by the accumulation of powdery materials.

[0022] This invention, through the addition of replacement components, facilitates the disassembly and replacement of the internal screen plate in a concrete processing grinding mill. This allows for easy disassembly, cleaning, and replacement of the screen plate when the screen holes become clogged after prolonged use. This improves the screening effect of the screen plate within the grinding mill and extends its service life. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0024] Figure 2 This is a partial structural diagram of the connection point of the connecting block proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the feeding frame proposed in this utility model;

[0026] Figure 4 This is a schematic diagram of the card plate structure proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating ring proposed in this utility model;

[0028] Figure 6 This is a schematic diagram of the mounting ring structure proposed in this utility model;

[0029] Figure 7 This is a schematic diagram of the mounting block structure proposed in this utility model;

[0030] Figure 8 This is a schematic diagram of the slider structure proposed in this utility model.

[0031] Legend:

[0032] 1. Grinding frame; 2. Feeding frame; 3. Mounting groove; 4. Rotating ring; 5. Gear ring; 6. Fixing ring; 7. Outer tube; 8. Spring; 9. Inner tube; 10. Mounting ring; 11. Screen plate; 12. Hydraulic cylinder; 13. Connecting block; 14. Rack; 15. Mounting rod; 16. Gear; 17. Slider; 18. Fixing plate; 19. Slide groove; 20. Slot; 21. Double-acting lead screw; 22. Knob; 23. Connecting rod; 24. Slot plate; 25. Threaded hole; 26. Mounting block; 27. Bolt; 28. Feeding pipe. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] As attached Figures 1-8 As shown, one embodiment of the present invention is a concrete processing grinding mill, including a grinding frame 1, a feeding frame 2 is provided below the grinding frame 1, and a screening component is provided inside the feeding frame 2.

[0035] The screening assembly includes a mounting groove 3, which is located inside the feeding frame 2. A rotating ring 4 is rotatably connected inside the mounting groove 3. A toothed ring 5 is fixedly connected to the outside of the rotating ring 4. A fixed ring 6 is fixedly connected inside the rotating ring 4. Multiple outer tubes 7 and multiple springs 8 are fixedly connected to the upper surface of the fixed ring 6. The springs 8 are located inside the outer tubes 7. An inner tube 9 is slidably connected inside the outer tubes 7. One end of each spring 8 is fixedly connected to a mounting ring 10, which is fixedly connected to the upper surface of the multiple inner tubes 9. A screen plate 11 is located inside the mounting ring 10. A hydraulic cylinder 12 is fixedly installed on one side of the material frame 2. A connecting block 13 is fixedly connected to the output end of the hydraulic cylinder 12. A rack 14 is fixedly connected to one side of the connecting block 13. An installation rod 15 is fixedly connected to one side of the material frame 2. A gear 16 is rotatably connected to one end of the installation rod 15. The gear 16 is meshed with the rack 14 and the gear ring 5. The installation groove 3 facilitates the installation of the rotating ring 4. The gear ring 5 is used to connect with the gear 16. The screen plate 11 facilitates the screening of materials. The outer tube 7 and the inner tube 9 facilitate the limiting protection of the spring 8.

[0036] As attached Figure 8As shown, a replacement component is provided on the lower surface of the grinding frame 1. The replacement component includes two sliders 17, which are fixedly connected to the lower surface of the grinding frame 1. The cross-section of the sliders 17 is L-shaped. Fixing plates 18 are fixedly connected to both sides of the grinding frame 1. The sliders 17 can slide inside the groove 19, and the fixing plates 18 can facilitate the penetration of the clamping plate 24.

[0037] As attached Figure 4 As shown, two sliding grooves 19 are provided on the upper surface of the feeding frame 2, and slots 20 are provided on both sides of the feeding frame 2. The cross-section of the sliding groove 19 is L-shaped. The slots 20 facilitate the engagement of the card plate 24, and the sliding groove 19 is used for the sliding of the slider 17.

[0038] As attached Figure 1 As shown, a bidirectional lead screw 21 is rotatably connected to one side of the feeding frame 2. A knob 22 is fixedly connected to one end of the bidirectional lead screw 21. Both ends of the bidirectional lead screw 21 are threadedly connected to a connecting rod 23. A clamping plate 24 is fixedly connected to one end of the connecting rod 23. The two ends of the bidirectional lead screw 21 are set with threads in opposite directions. The connecting rod 23 facilitates the installation of the clamping plate 24.

[0039] As attached Figure 6 As shown, the upper surface of the mounting ring 10 has two threaded holes 25 for easy connection with the bolt 27.

[0040] As attached Figure 7 As shown, two mounting blocks 26 are fixedly connected to the upper surface of the sieve plate 11, and bolts 27 pass through the middle of the mounting blocks 26 to facilitate the installation of the sieve plate 11.

[0041] As attached Figure 3 As shown, a feeding pipe 28 is connected through the lower surface of the feeding frame 2 for feeding powdery materials.

[0042] Working principle: When using the grinding mill, the material is first put into the grinding frame 1 and the motor is turned on to drive the grinding roller to grind the material, so that the material reaches the inside of the feeding frame 2. The hydraulic cylinder 12 is turned on, so that the output end of the hydraulic cylinder 12 drives the connecting block 13 to move, which facilitates the movement of the rack 14. Through the meshing of the rack 14 and the gear 16, the gear 16 is driven to rotate. Through the meshing of the gear 16 and the gear ring 5, the gear ring 5 is driven to rotate. Thus, the gear ring 5 drives the rotating ring 4 to rotate inside the mounting groove 3. The rotating ring 4 drives the fixed ring 6 to indirectly drive the mounting ring 10 to rotate inside the rotating ring 4. The rotating ring 4 drives the screen plate 11 to rotate. When the screen plate 11 rotates, through the connection of the spring 8, the mounting ring 10 and the screen plate 11 can slide up and down inside the rotating ring 4. Under the action of the rotation and up and down shaking of the screen plate 11, the material is easily screened, thereby improving the screening efficiency.

[0043] When it is necessary to disassemble the screen plate 11, turn the knob 22 to drive the double-acting screw 21 to rotate. Under the action of the opposite threads at both ends of the double-acting screw 21, the connecting rods 23 at both ends are moved away from each other, so that the clamping plate 24 is disengaged from the inside of the clamping groove 20. Then pull the grinding frame 1 so that the slider 17 is slidably connected to the inside of the groove 19, so that the grinding frame 1 is separated from the feeding frame 2, which facilitates the exposure of the screen plate 11. Then turn the bolt 27 to disengage the bolt 27 from the inside of the threaded hole 25. Then lift the screen plate 11 to facilitate the removal of the screen plate 11 from the inside of the mounting ring 10, which helps to clean and replace the screen plate 11. The operation is reversed during installation, which helps to extend the service life of the screen plate 11.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concrete processing grinding mill, comprising a grinding frame (1), characterized in that: A feeding frame (2) is provided below the grinding frame (1), and a screening component is provided inside the feeding frame (2); The screening assembly includes a mounting groove (3), which is located inside the feeding frame (2). A rotating ring (4) is rotatably connected inside the mounting groove (3). A toothed ring (5) is fixedly connected to the outside of the rotating ring (4). A fixed ring (6) is fixedly connected inside the rotating ring (4). Multiple outer tubes (7) and multiple springs (8) are fixedly connected to the upper surface of the fixed ring (6). The springs (8) are located inside the outer tubes (7). An inner tube (9) is slidably connected inside the outer tubes (7). One end of each of the multiple springs (8) is fixedly connected to a mounting ring (10). 10) Fixedly connected to the upper surface of multiple inner tubes (9), the mounting ring (10) is provided with a screen plate (11), a hydraulic cylinder (12) is fixedly installed on one side of the feeding frame (2), a connecting block (13) is fixedly connected to the output end of the hydraulic cylinder (12), a rack (14) is fixedly connected to one side of the connecting block (13), an mounting rod (15) is fixedly connected to one side of the feeding frame (2), a gear (16) is rotatably connected to one end of the mounting rod (15), the gear (16) and the rack (14) are meshed, and the gear (16) and the gear ring (5) are meshed.

2. The concrete processing grinding mill according to claim 1, characterized in that: The lower surface of the grinding frame (1) is provided with a replacement component, which includes two sliders (17). The two sliders (17) are fixedly connected to the lower surface of the grinding frame (1), and the cross section of the sliders (17) is set to L-shape.

3. The concrete processing grinding mill according to claim 1, characterized in that: The grinding frame (1) is fixedly connected to two sides by a fixing plate (18), and the upper surface of the feeding frame (2) has two sliding grooves (19).

4. The concrete processing grinding mill according to claim 1, characterized in that: The feeding frame (2) has slots (20) on both sides, and a two-way lead screw (21) is rotatably connected to one side of the feeding frame (2).

5. The concrete processing grinding mill according to claim 4, characterized in that: A knob (22) is fixedly connected to one end of the bidirectional lead screw (21), and a connecting rod (23) is threaded to both ends of the bidirectional lead screw (21).

6. The concrete processing grinding mill according to claim 5, characterized in that: One end of the connecting rod (23) is fixedly connected to a clamping plate (24), and the upper surface of the mounting ring (10) has two threaded holes (25).

7. The concrete processing grinding mill according to claim 1, characterized in that: Two mounting blocks (26) are fixedly connected to the upper surface of the sieve plate (11), and bolts (27) penetrate through the middle of the mounting blocks (26). A feeding pipe (28) is connected through the lower surface of the feeding frame (2).

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